:root{--bg: #0a0a0a;--bg-card: rgba(255, 255, 255, .04);--bg-card-hover: rgba(255, 255, 255, .07);--border: rgba(255, 255, 255, .08);--text: #f0f0f0;--text-secondary: rgba(255, 255, 255, .55);--accent: #6366f1;--accent-glow: rgba(99, 102, 241, .3);--red: #ef4444;--green: #10b981;--amber: #f59e0b;--purple: #8b5cf6;--radius: .75rem;--radius-sm: .5rem;color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100vh;background:var(--bg);color:var(--text)}body{-webkit-font-smoothing:antialiased}.app{display:flex;flex-direction:column;min-height:100vh;max-width:600px;margin:0 auto;position:relative}.app-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;position:sticky;top:0;z-index:100;background:#0a0a0ad9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.logo{display:flex;align-items:center;gap:.5rem}.logo-icon{font-size:1.5rem}.logo-text{font-size:1.25rem;font-weight:700;letter-spacing:-.03em;background:linear-gradient(135deg,var(--accent),#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-greeting{font-size:.85rem;color:var(--text-secondary)}.app-main{flex:1;padding:1rem 1.25rem;padding-bottom:calc(5rem + env(safe-area-inset-bottom,0px));overflow-y:auto}.bottom-nav{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:600px;display:flex;justify-content:space-around;padding:.5rem .75rem;padding-bottom:calc(.5rem + env(safe-area-inset-bottom,0px));background:#0a0a0ae6;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--border);z-index:100}.nav-btn{display:flex;flex-direction:column;align-items:center;gap:.2rem;padding:.4rem .75rem;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-sm);transition:all .2s;-webkit-tap-highlight-color:transparent}.nav-btn.active{color:var(--accent);background:var(--accent-glow)}.nav-icon{font-size:1.25rem}.nav-label{font-size:.65rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.card-section{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;margin-bottom:1rem;transition:background .2s}.card-section:hover{background:var(--bg-card-hover)}.section-title{font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-secondary);margin-bottom:1rem}.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-bottom:1rem}.stat-card{display:flex;align-items:center;gap:.75rem;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;opacity:0;transform:translateY(16px);animation:cardIn .5s ease forwards}.stat-card:nth-child(1){animation-delay:0s}.stat-card:nth-child(2){animation-delay:.08s}.stat-card:nth-child(3){animation-delay:.16s}.stat-card:nth-child(4){animation-delay:.24s}@keyframes cardIn{to{opacity:1;transform:translateY(0)}}.stat-icon{font-size:1.75rem;flex-shrink:0}.stat-value{font-size:1.35rem;font-weight:700;letter-spacing:-.02em}.stat-label{font-size:.7rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.stat-calories{border-left:3px solid var(--red)}.stat-workouts{border-left:3px solid var(--accent)}.stat-duration{border-left:3px solid var(--green)}.stat-streak{border-left:3px solid var(--amber)}.dashboard-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}@media(max-width:480px){.dashboard-grid{grid-template-columns:1fr}.stats-grid{grid-template-columns:1fr 1fr}}.week-total{font-size:.8rem;color:var(--text-secondary);margin-bottom:.75rem}.chart-container{height:160px}.chart-bars{display:flex;align-items:flex-end;justify-content:space-between;height:100%;gap:.5rem}.chart-bar-group{display:flex;flex-direction:column;align-items:center;flex:1;height:100%}.chart-bar-value{font-size:.6rem;color:var(--text-secondary);margin-bottom:.25rem;min-height:1rem}.chart-bar-track{flex:1;width:100%;display:flex;align-items:flex-end;justify-content:center}.chart-bar{width:70%;min-height:2px;background:linear-gradient(to top,var(--accent),#a78bfa);border-radius:4px 4px 0 0;opacity:0;animation:barGrow .6s ease forwards}@keyframes barGrow{0%{opacity:0;transform:scaleY(0);transform-origin:bottom}to{opacity:1;transform:scaleY(1);transform-origin:bottom}}.chart-bar-label{font-size:.6rem;color:var(--text-secondary);margin-top:.35rem}.donut-container{display:flex;flex-direction:column;align-items:center;gap:1rem}.donut-svg{width:140px;height:140px;transform:rotate(-90deg)}.donut-segment{opacity:0;animation:donutIn .8s ease forwards}@keyframes donutIn{0%{opacity:0}to{opacity:1}}.donut-center{position:relative;margin-top:-95px;margin-bottom:35px;text-align:center;pointer-events:none}.donut-total{font-size:1.5rem;font-weight:700}.donut-label{font-size:.7rem;color:var(--text-secondary)}.donut-legend{width:100%;display:flex;flex-direction:column;gap:.4rem}.legend-item{display:flex;align-items:center;gap:.4rem;font-size:.75rem}.legend-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.legend-icon{font-size:.85rem}.legend-name{flex:1;text-transform:capitalize;color:var(--text-secondary)}.legend-value{font-weight:600}.workout-list{display:flex;flex-direction:column;gap:.5rem}.workout-item{display:flex;align-items:center;gap:.75rem;padding:.75rem;background:#ffffff05;border-radius:var(--radius-sm);border:1px solid var(--border);transition:background .15s}.workout-item:hover{background:#ffffff0d}.workout-date{font-size:.75rem;font-weight:600;color:var(--accent);min-width:3rem;flex-shrink:0}.workout-exercises{flex:1;display:flex;flex-wrap:wrap;gap:.3rem}.exercise-tag{font-size:.65rem;padding:.15rem .5rem;border-radius:999px;border:1px solid;background:#ffffff08;white-space:nowrap}.workout-stats{display:flex;flex-direction:column;align-items:flex-end;gap:.15rem;flex-shrink:0}.workout-cal{font-size:.7rem;font-weight:600;color:var(--amber)}.workout-dur{font-size:.65rem;color:var(--text-secondary)}.category-grid{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}.category-btn{display:flex;align-items:center;gap:.5rem;padding:.75rem 1rem;border:1px solid var(--border);border-radius:var(--radius-sm);background:transparent;color:var(--text);cursor:pointer;transition:all .2s;text-transform:capitalize;font-size:.9rem}.category-btn:hover{background:#ffffff0d}.category-btn.active{border-color:var(--cat-color, var(--accent));background:color-mix(in srgb,var(--cat-color, var(--accent)) 15%,transparent);box-shadow:0 0 12px color-mix(in srgb,var(--cat-color, var(--accent)) 20%,transparent)}.cat-icon{font-size:1.25rem}.exercise-select-grid{display:flex;flex-wrap:wrap;gap:.4rem}.exercise-select-btn{padding:.5rem .85rem;border:1px solid var(--border);border-radius:999px;background:transparent;color:var(--text);cursor:pointer;font-size:.8rem;transition:all .2s}.exercise-select-btn:hover{background:#ffffff0d}.exercise-select-btn.selected{background:var(--accent);border-color:var(--accent);color:#fff}.exercise-config{margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.exercise-config:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.exercise-config-header{font-weight:600;margin-bottom:.5rem;font-size:.9rem}.set-row{display:flex;align-items:center;gap:.5rem;margin-bottom:.4rem}.set-num{font-size:.75rem;color:var(--text-secondary);min-width:2.5rem}.set-field{display:flex;flex-direction:column;align-items:center;gap:.15rem}.set-field span{font-size:.6rem;color:var(--text-secondary);text-transform:uppercase}.set-field input{width:60px;text-align:center}.remove-set-btn{width:24px;height:24px;border-radius:50%;border:1px solid var(--border);background:transparent;color:var(--red);cursor:pointer;font-size:1rem;display:flex;align-items:center;justify-content:center;transition:background .15s}.remove-set-btn:hover{background:#ef444426}.add-set-btn{margin-top:.5rem;padding:.35rem .75rem;border:1px dashed var(--border);border-radius:var(--radius-sm);background:transparent;color:var(--accent);cursor:pointer;font-size:.8rem;transition:all .15s}.add-set-btn:hover{background:#6366f11a;border-color:var(--accent)}.form-group{margin-bottom:1rem}.form-group label{display:flex;flex-direction:column;gap:.35rem;font-size:.8rem;color:var(--text-secondary)}.form-group input,.form-group textarea{background:#ffffff0d;border:1px solid var(--border);border-radius:var(--radius-sm);padding:.6rem .75rem;color:var(--text);font-size:.9rem;font-family:inherit;outline:none;transition:border-color .2s}.form-group input:focus,.form-group textarea:focus{border-color:var(--accent)}.form-group textarea{resize:vertical}.range-input{width:100%;accent-color:var(--accent);height:6px;cursor:pointer}.range-value{font-size:1.1rem;font-weight:600;color:var(--text);text-align:center}.bmi-inputs-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.save-profile-btn,.submit-workout-btn{width:100%;padding:.85rem;border:none;border-radius:var(--radius-sm);background:var(--accent);color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;margin-top:.5rem}.save-profile-btn:hover,.submit-workout-btn:hover{background:#5558e6;box-shadow:0 4px 20px var(--accent-glow)}.submit-workout-btn:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}.success-toast{position:fixed;top:1rem;left:50%;transform:translate(-50%);background:var(--green);color:#fff;padding:.75rem 1.5rem;border-radius:999px;font-weight:600;font-size:.9rem;z-index:200;animation:toastIn .3s ease,toastOut .3s ease 1.7s forwards;box-shadow:0 4px 20px #10b9814d}@keyframes toastIn{0%{opacity:0;transform:translate(-50%) translateY(-20px)}to{opacity:1;transform:translate(-50%) translateY(0)}}@keyframes toastOut{0%{opacity:1;transform:translate(-50%) translateY(0)}to{opacity:0;transform:translate(-50%) translateY(-20px)}}.bmi-page .card-section{margin-bottom:1rem}.bmi-gauge{display:flex;justify-content:center;margin-bottom:.5rem}.gauge-svg{width:200px;height:110px}.gauge-needle{transition:transform .8s cubic-bezier(.34,1.56,.64,1)}.gauge-label{font-size:9px;fill:var(--text-secondary)}.bmi-result{text-align:center}.bmi-value{font-size:3rem;font-weight:800;letter-spacing:-.04em;transition:color .3s}.bmi-category{font-size:1.1rem;font-weight:600;margin-bottom:1.25rem;transition:color .3s}.bmi-scale{display:grid;grid-template-columns:repeat(4,1fr);gap:.25rem}.scale-segment{padding:.4rem .25rem;border-radius:var(--radius-sm);text-align:center;opacity:.8}.scale-segment span{display:block;font-size:.6rem;font-weight:600}.bmi-info{font-size:.9rem;color:var(--text-secondary);line-height:1.6}.bmi-info strong{color:var(--text)}.achievements-summary{display:flex;align-items:center;gap:1rem;margin-bottom:1.25rem;padding:1.25rem;background:linear-gradient(135deg,#6366f11a,#8b5cf61a);border:1px solid rgba(99,102,241,.2);border-radius:var(--radius)}.achievement-big-icon{font-size:2.5rem}.achievement-count{font-size:1.75rem;font-weight:800;letter-spacing:-.03em}.achievement-sub{font-size:.8rem;color:var(--text-secondary)}.achievements-grid{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}.achievement-card{position:relative;padding:1rem;border-radius:var(--radius-sm);border:1px solid var(--border);text-align:center;opacity:0;transform:scale(.9);animation:achieveIn .4s ease forwards}@keyframes achieveIn{to{opacity:1;transform:scale(1)}}.achievement-card.unlocked{background:linear-gradient(135deg,#6366f114,#8b5cf614);border-color:#6366f140}.achievement-card.locked{opacity:0;animation:achieveIn .4s ease forwards}.achievement-card.locked .achievement-icon,.achievement-card.locked .achievement-name,.achievement-card.locked .achievement-desc{filter:grayscale(1);opacity:.5}.achievement-icon{font-size:2rem;margin-bottom:.35rem}.achievement-name{font-weight:700;font-size:.85rem;margin-bottom:.2rem}.achievement-desc{font-size:.7rem;color:var(--text-secondary);line-height:1.3}.achievement-check{position:absolute;top:.4rem;right:.4rem;width:20px;height:20px;background:var(--green);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.7rem;color:#fff}.empty-state{color:var(--text-secondary);font-size:.85rem;text-align:center;padding:1.5rem 0}.dashboard.animate-in .card-section,.achievements-page.animate-in .card-section{opacity:0;transform:translateY(12px);animation:sectionIn .5s ease forwards}.dashboard.animate-in .card-section:nth-child(1),.achievements-page.animate-in .card-section:nth-child(1){animation-delay:.1s}.dashboard.animate-in .card-section:nth-child(2),.achievements-page.animate-in .card-section:nth-child(2){animation-delay:.2s}.dashboard.animate-in .card-section:nth-child(3),.achievements-page.animate-in .card-section:nth-child(3){animation-delay:.3s}@keyframes sectionIn{to{opacity:1;transform:translateY(0)}}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:2px}@media(max-width:480px){.app-header,.app-main{padding:.75rem 1rem}.stat-value{font-size:1.1rem}.achievements-grid{grid-template-columns:1fr 1fr}.bmi-value{font-size:2.5rem}.bmi-scale{grid-template-columns:repeat(2,1fr)}}